Most people seem to use Google Analytics, but I use Reinvigorate (reinvigorate.net) to track my statistics. What do you think is the best stats-tracking software?
Most people have hard set favorites, but it's always a good idea to try many different ones. You might find a feature set that works well for you.
If you are willing to pay, Extremetracking is a good one at least for me. You can even tell which pages your visitors visited in your website through their service.
Google analytics for me. Find that's the beter way to calculate traffic by region etc etc. It is also very quick collecting data and into the page he loading very fast so the users don't see any difference for loading the mini-script